//水平居中
.horizontalLayout(@left){
   margin-left: -@left;
   left: 50%;
}

//垂直居中
.verticalLayout(@top){
   margin-top: -@top;
   top: 50%;
}
//超出部分显示省略号
.clipLab(){
 overflow: hidden;
text-overflow: ellipsis;
  white-space: nowrap;
}

.clipNumberLines(@linenum){
   display: -webkit-box;
    overflow: hidden;
    white-space: normal!important;
    text-overflow: ellipsis;
    word-wrap: break-word;
    -webkit-line-clamp: @linenum;
    -webkit-box-orient: vertical;
}
.blackColorAlpha(@alpha){
   color: rgba(51, 51, 51, @alpha);
}

